wrong custom filed vaule for jira requirement update date in REST API search jira issue

[Samita]

Hi,

I am using JIRA REST api call to searche for requirement. I have found that the requirement update date is retriveing in REST API response is wrong. which is having same value for all issu type. The JIRA requirement update date is managed with one of the custom fields. 

I believe it is having cookie issue while invoking REST API call using Cookie. Please find the below REST API invoke logic.

ClientResponse response = webResource.header("Cookie", "JSESSIONID=" + auth).type("application/json")
.accept("application/json").get(ClientResponse.class);

Would you please suggest how to refresh COOKIE in rest api call.